"A new species of giant crayfish literally crawled out from under a rock in Tennessee, proving that large new species of animals can be found in highly populated and well-explored places, researchers said on Wednesday.
The new crayfish should not have been easily overlooked, as it is huge -- twice the size of other species, the team at the University of Illinois at Urbana-Champaign and Eastern Kentucky University said.
But the crustacean is also quite rare, they report in the Proceedings of the Biological Society of Washington.
'This isn't a crayfish that someone would have picked up and just said, 'Oh, it's another crayfish,' and put it back,' said University of Illinois aquatic biologist Chris Taylor, one of the researchers."